Book excerpt: Written specifically for clinical exercise physiologists, ECG Interpretation for the Clinical Exercise Physiologist, 2nd Edition, provides an introduction to basic concepts and measurements followed by in-depth explorations of rhythm and atrioventricular blocks and key topics including infarct, hypertrophy, axis, and conduction defects. Accompanying exercise-related case studies make this engaging text an ideal review resource for certification prep as well as a guide to success in practice. Enhancements to this 2nd Edition include a new design that improves readability and clarity, expanded study support through updated examples and case study questions, as well as additional interpretation practice opportunities that ensure understanding and boost clinical confidence.